Since the last update to 2.1, on 3 of my pfsense boxes, NTOP has stopped working. Nothing is showing in the system logs, I have uninstalled and re installed with no change, any suggestions on where to look for problems?
I had some issues as well.
But after a re-install all started working for me.
I also saw an issue where it was not working with firefox and only with chrome.
Have you try a different browser?